This problem is also reproducible with same xrandr --output VGA --mode 1024x768 command when launched with a custom button (see configuration in attachment)
Hope this could help. ** Attachment added: "Custom button configuration which reproducise this problem" http://launchpadlibrarian.net/20773977/xrandButton.jpg -- [i965] Reducing resolution on 965G using Screen Resolution locks system up with flashing/blinking screen https://bugs.launchpad.net/bugs/224508 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs